wicd refuses to start

[Liviu Andronic <landronimirc@gmail.com>]

Dear all
After some recent updates, I assume, wicd strangely refuses to start. 
liviu@debian-liv:~$ wicd-gtk
Has notifications support True
Loading...
Connecting to daemon...
Connected.
Traceback (most recent call last):
  File "/usr/share/wicd/gtk/wicd-client.py", line 1033, in <module>
    main(sys.argv)
  File "/usr/share/wicd/gtk/wicd-client.py", line 91, in wrapper
    return func(*args, **kwargs)
  File "/usr/share/wicd/gtk/wicd-client.py", line 1005, in main
    tray_icon = TrayIcon(animate, displaytray=display_app)
  File "/usr/share/wicd/gtk/wicd-client.py", line 139, in __init__
    self.icon_info = self.TrayConnectionInfo(self, self.tr, animate)
  File "/usr/share/wicd/gtk/wicd-client.py", line 198, in __init__
    self.update_tray_icon()
  File "/usr/share/wicd/gtk/wicd-client.py", line 91, in wrapper
    return func(*args, **kwargs)
  File "/usr/share/wicd/gtk/wicd-client.py", line 349, in
update_tray_icon self.set_wireless_state(info)
  File "/usr/share/wicd/gtk/wicd-client.py", line 91, in wrapper
    return func(*args, **kwargs)
  File "/usr/share/wicd/gtk/wicd-client.py", line 289, in
set_wireless_state 'network-wireless')
  File "/usr/share/wicd/gtk/wicd-client.py", line 233, in
_show_notification self._last_bubble.show()
glib.GError: Unable to connect to server

However, it starts just fine with 
liviu@debian-liv:~$ wicd-gtk --no-tray
Has notifications support True
Loading...
Connecting to daemon...
Connected.
/usr/share/wicd/gtk/gui.py:152: GtkWarning: gtk_toolbar_set_icon_size:
assertion `icon_size != GTK_ICON_SIZE_INVALID' failed self.wTree =
gtk.glade.XML(gladefile)

or from root
debian-liv:/home/liviu# wicd-client 
Has notifications support True
Loading...
Connecting to daemon...
Connected.
displaytray True
Done loading.

I'm using wicd 1.7.0 on an outdated Debian squeeze. 

Any ideas on what's going wrong? Regards
Liviu